Worm_Win32_Ambler_A

YARA detection rule by roadwy

Worm:Win32/Ambler.A,SIGNATURE_TYPE_PEHSTR_EXT,0c 00 0a 00 12 00 00

rule Worm_Win32_Ambler_A{
	meta:
		description = "Worm:Win32/Ambler.A,SIGNATURE_TYPE_PEHSTR_EXT,0c 00 0a 00 12 00 00 "
		
	strings :
		$a_03_0 = {2b fe 80 71 ff ?? 80 31 ?? 80 71 01 ?? 83 c1 03 83 c2 03 8d 1c 0f 3b d8 72 e8 } 		$a_03_1 = {84 00 00 00 c7 05 ?? ?? ?? ?? 00 03 00 00 ff 15 ?? ?? ?? ?? b8 ?? ?? ?? ?? 8b c8 85 c9 74 10 6a 10 50 68 ?? ?? ?? ?? e8 ?? ?? ?? ?? 83 c4 0c ?? ff 15 ?? ?? ?? ?? eb } 		$a_03_2 = {6a 02 c6 06 4d 58 c6 46 01 5a 3b f8 76 09 80 34 30 ?? 40 3b c7 72 f7 } 		$a_01_3 = {2a 2a 46 4f 52 4d 2a 2a 25 73 } 		$a_01_4 = {6e 61 6d 65 3d 22 73 65 63 75 72 69 74 79 4b 65 79 25 64 22 } 		$a_01_5 = {69 64 3d 22 73 65 63 75 72 69 74 79 4b 65 79 25 64 41 6e 73 22 } 		$a_01_6 = {25 73 3d 4b 45 59 4c 4f 47 47 45 44 3a 25 73 20 4b 45 59 53 52 45 41 44 3a 25 73 } 		$a_01_7 = {25 73 3d 4b 45 59 53 52 45 41 44 3a 25 73 } 		$a_01_8 = {26 6b 61 76 3b } 		$a_01_9 = {6c 6f 67 77 6f 72 64 73 } 		$a_01_10 = {4c 4f 41 44 58 4d 4c } 		$a_01_11 = {48 4f 53 54 41 44 44 } 		$a_01_12 = {44 45 4c 45 54 45 53 45 4c 46 } 		$a_01_13 = {44 45 4c 45 54 45 43 4f 4f 4b 49 45 53 } 		$a_01_14 = {43 4f 50 59 42 4f 46 41 4b 45 59 53 } 		$a_01_15 = {44 45 4c 45 54 45 42 4f 46 41 4b 45 59 53 } 		$a_01_16 = {4b 49 4c 4c 57 49 4e } 		$a_01_17 = {52 45 53 45 54 47 52 41 42 4c 49 4d 49 54 53 } 	condition:
		((#a_03_0  & 1)*5+(#a_03_1  & 1)*5+(#a_03_2  & 1)*5+(#a_01_3  & 1)*2+(#a_01_4  & 1)*2+(#a_01_5  & 1)*2+(#a_01_6  & 1)*2+(#a_01_7  & 1)*2+(#a_01_8  & 1)*1+(#a_01_9  & 1)*1+(#a_01_10  & 1)*1+(#a_01_11  & 1)*1+(#a_01_12  & 1)*1+(#a_01_13  & 1)*1+(#a_01_14  & 1)*1+(#a_01_15  & 1)*1+(#a_01_16  & 1)*1+(#a_01_17  & 1)*1) >=10
 
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

ed3f6cb9-b453-4d02-997e-7777ba23d0ae

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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